Which of the following allows capillaries to exchange gas between blood cells and surrounding tissue

Answer:

It's permeability

Explanation:

It is necessary for cells to have nucleus acids in their nucleus because they carry the genetic blueprint of a cell and carry instructions for the functioning of the cell.

A nucleic acid is a chain of nucleotides that biological systems use to store genetic information. It produces the DNA and RNA molecules, which hold the data necessary for cells to produce proteins.

A "polymer" of "nucleotides," or a long molecule made up of them, is referred to as nucleic acid. All life on Earth needs nucleic acids to store genetic information; in other words, nucleic acids serve as the "source code" or fundamental blueprint for the creation of cells.

Your genetic information, which you acquired from your parents, is stored and transmitted by nucleic acids. Genes are unique pieces of nucleic acids that are in charge of creating every protein in your body. 

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Answer:

IT HAS TO RELEASE ENERGY

Explanation:

Answer:

an antibody is another name for immunoglobulin

Answer:

Immunoglobulins are also known as Antibodies.

They are produced by white blood cells.

Answer: D

Explanation: Wind turbines generate energy by moving. (Kinetic energy is movement.) Wind turbines, in more detail, are pushed by the wind which causes a transfer of kinetic energy which is then converted by the turbine into electrical energy.

ABO blood type is determied by the triallelic gene I (IA, IB, i). 1) Yes. Only if both of them are heterozygous IBi and transmit the i allele to the progeny, they can have a 0 blood child. 2) No, because neither of them carry the A allele in their genotype.

Blood type ABO is determined by a triallelic gene I. Depending on the allelic interaction, this gene can express complete dominance or co-dominance. Let us see,

Alleles

→ IA and IB are codominant, meaning that when they are together in the same genotype, both of them are expressed.

→ IA and IB express complete dominance over i, meaning that the dominant IA and IB alelles hide the expression of the recessive allele i in heterozygous individuals.

Genotypes    Phenotype

IAIA, IAi      ⇒    Blood type A

IBIB, IBi      ⇒    Blood type B

IAIB            ⇒    Blood type AB

ii                 ⇒    Blood type 0

In the e xposed example, Aunt and Uncle Smiley have Type B blood. Their genotypes might be either IBIB or IBi.

1) Is it possible for them to have a baby Smiley with Type

O blood? Yes. If both of them are heterozygous IBi and transmit the i allele to the progeny, then they can have a 0 blood child.

2) Is it possible for them to have a baby Smiley with Type A or Type AB blood? No, because neither of them carry the A allele in their genotype. So their children can not have blood type A or AB.

To answer this question, we will consider they are both heterozygous IBi. Remember, the only way they can have a child with 0 blood type is if they are both heterozygous IBi. If at least one of them is IBIB, they children can not be homozygous recessive ii.

Parentals) IBi   x   IBi

Gametes) IB   i       IB     i

Punnett square)     IB       i

                        IB   IBIB   IBi

                         i    IBi     ii

F1) The baby has

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The answer is gene flow. Gene flow is the transfer of genes or alleles from one population to another due to the movement of individuals or their gametes (reproductive cells).

What is Gene?

A gene is a specific sequence of DNA that encodes a particular protein or RNA molecule, which in turn determines a specific trait or characteristic in an organism. Genes are the fundamental units of heredity and are passed down from parents to their offspring during reproduction.

As humans migrate around the globe, they can bring their genes with them and introduce them into new populations or take genes from one population and introduce them into another, thus affecting the genetic makeup of those populations. This movement of genes is known as gene flow.

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they were classified as echinoderms and not as a new phylum because they have the attribute of the echinoderm where they were seen as the sea stars without arms, they live in the deep ocean.

An echinoderm  can be described as the any member that can be attributed to the phylum Echinodermata.

The members of this family can be seen as one that posses a recognisable radial symmetry which help in the process of their classification, and some of the members that fall into this caetegories are:

It should be noted that the phylum can be seen as the level of classification or taxonomic rank  that can be seen below kingdom.

In conclusion, the Sea Daisies which was thenew class of echinoderm that was discovered in 1986 can be classified as the echinoderm and not as phylum since they have the feautures of the echinoderm.

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Answer:

Thylakoid membrane

Explanation:

There are three "layers" of a chloroplast. The inner layer, the outer layer and the Thylakoid membrane is the third and internal membrane system.

I hope this helped!

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Correct option is B.\(C_6H_12O_6 + 6O_2\)

Because, the products formed after photosynthesis are Glucose and Oxygen, which again reacts during respiration to release Energy.

_____________________________

\(\mathrm{ \#TeeNForeveR}\)

Answer:

b. C6H12O6 + 6O2

Explanation:

That process is called respiration where glucose reacts with oxygen to form water, carbondioxide and ATP ( energy )

The nitrogen cycle is important to humans in the following way: it converts nitrogen into a form that humans can obtain by eating other organisms (option B).

Nitrogen cycle is the natural circulation of nitrogen in a series of processes by which nitrogen and its compounds are interconverted in the environment and in living organisms, including nitrogen fixation and decomposition.

During the nitrogen cycle, atmospheric nitrogen is converted to nitrogen oxides by lightning and deposited in the soil by rain, where it is assimilated by plants and either eaten by animals (and returned as faeces) or decomposed back to elemental nitrogen by bacteria.

The usable form of nitrogen that is assimilated by plants becomes accessible to humans when they consume the plants, hence, depicting the importance of the nitrogen cycle.

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The reaction releases digestive enzymes from the acrosome of the sperm cell, which then digest a path through the granulosa cells and the zona pellucida.

The acrosome of a sperm cell secretes digestive enzymes including hyaluronidase and acrosin that dissolve the zona pellucida, the ovum's outer layer. As a result, the haploid nucleus in the sperm and the haploid nucleus in the ovum can merge.

An organ found on the front part of the sperm head is called an acrosome. Together with humans, it is found in many other mammals. The Golgi apparatus of the cell gives rise to the acrosome, a cap-like structure.

These enzymes disintegrate the zona pellucida, the ovum's outer membrane. This makes it easier for the sperm cell and ovum to fuse together. The digestive enzymes known as hyaluronidases help the body break down hyaluronic acid.

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Based on the results of the experiment it can infer that its temperature has an impact on the highest health rating. Because it requires low temperatures, it would be simple.

It was giving in the hypothesis that Anglerfish in different lighting conditions will have different health rating. The anglerfish will have a (worse) health rating if the light level or the temperature level in the habitat is raised.

Compared to narwhal at low and high temperatures The narwhal's health grade will be (lesser) if the habitat temperature is raised.

Anglerfish under high and low pressure conditions The anglerfish will have a (higher) health grade if the habitat's pressure is increased.

So, according to the experiment's findings, the highest health rating is influenced by the temperature. It would be easy because low temperatures are needed.

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Answer:

Umami.

Explanation:

Umami is the flavor which the cat like the most. This Umami flavor is present in the fish, shellfish, cured meats, meat extracts, mushrooms, vegetables. We know that fish is the most favourite food of cat and the main reason for this is the presence of Umami in the fish. So due to Umami flavor, the fish food is eaten by the cat with more enjoyment as compared to other foods so the person have to provide fish food to the cat for their good health.

Answer:

Crossing Over

Answer:

Here are four traits that would make it hard for a vaccine to be used:

1. Rapid mutation rate. If a pathogen mutates rapidly, it will be able to evade the immune system's defenses, including the antibodies produced by a vaccine. This is a particular problem with viruses, which can mutate very quickly.

2. Ability to evade the immune system. Some pathogens are able to evade the immune system by hiding inside cells or by changing their surface proteins so that they are no longer recognized by the immune system. This makes it difficult for the immune system to mount an effective response to the infection.

3. Ability to spread easily. If a pathogen is easily spread from person to person, it will be more difficult to prevent infection through vaccination. This is a particular problem with respiratory viruses, which can be spread through coughing and sneezing.

4. Lack of animal reservoirs. If a pathogen does not have animal reservoirs, it will be more difficult to develop a vaccine against it. This is because vaccines are typically developed using weakened or killed versions of the pathogen. If there are no animal reservoirs, there will be no source of the pathogen to use for vaccine development.

It is important to note that these are just a few of the traits that can make it difficult to develop a vaccine against a pathogen. There are many other factors that can contribute to the difficulty of vaccine development, such as the cost of vaccine development, the availability of funding, and the political will to support vaccine development.

Answer:

oh dum the answer is A

Explanation:

Energy to power for light independent reaction come from chlorophyll from photosystem.

The Calvin-Benson cycle and the light independent process both take place in the stroma of the chloroplast. Carbohydrates are created from carbon dioxide through a sequence of chemical processes.

These processes are powered by the ATP and NADPH produced during the light-dependent process. Ribulose bisphosphate, a 5C molecule, initiates the Calvin cycle (or RuBP).

RuBP carboxylase, often known as Rubisco, is an enzyme that facilitates the addition of a CO2 molecule to RuBP. The resulting 6C molecule, known as glycerate-3-phosphate, is unstable and decomposes into two 3C compounds (GP)

Therefore, Energy to power for light independent reaction come from chlorophyll from photosystem.

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Flowers having different parts calyx, corolla, androecium, and gynoecium contain a specific floral position.

The flower is made up of four whorls of modified leaves called the calyx, corolla, androecium, and gynoecium.

Each of these whorls contains one floral portion, which is the sepals, petals, stamens, and pistils. Grasp plant sexual reproduction, pollination syndromes, plant breeding, and fruit construction require a thorough understanding of floral structure.

Therefore in flowers, different floral positions consist of calyx, corolla, androecium, and gynoecium.

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The genotype of the F1 offspring is YyTt, and the phenotype is yellow and tall. The probability of each phenotype in the F1 offspring is as follows yellow and tall is 1/2 or 50%, green and short is 1/2 or 50%.

Genotype refers to the genetic makeup or combination of alleles present in an organism, while phenotype refers to the observable traits or characteristics expressed by an organism. Genotype represents the genes an organism carries, while phenotype represents the physical or observable features resulting from the interaction between genotype and the environment.

When a heterozygous ail yellow plant (genotype Yy) is crossed with a homozygous short green plant (genotype tt), the F1 offspring will have the genotype YyTt and the phenotype of yellow and tall. The probability of this phenotype occurring in the F1 generation is 50%. Additionally, there is a 50% probability of the F1 offspring having the phenotype of green and short.

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Let's say trait for Tallness of Pea Plants and a cross between a homozygous dominant and a homozygous recessive.

If a monohybrid cross is done with a homozygous dominant and a homozygous recessive, than the genotypes of the F1 and F2 generation

PARENT (P)

GENOTYPES: PHENOTYPES:

Homozygous dominant: TT Tall

Homozygous recessive: tt Short

F1 GENERATION TT x tt

GENOTYPE: PHENOTYPE:

Heterozygous: Tt Tall

F2 GENERATION Tt x Tt

GENOTYPES: PHENOTYPES:

TT Tall

Tt Tall

tt Short

Therefore, Let's say trait for Tallness of Pea Plants and a cross between a homozygous dominant and a homozygous recessive.

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Blue-green algae are photosynthetic prokaryotes, while fungi are eukaryotes that obtain nutrition through absorption.

Blue-green algae and fungi are both organisms, but they belong to different domains and have distinct characteristics. Blue-green algae, also known as cyanobacteria, are classified under the domain Bacteria, while fungi belong to the domain Eukarya.

Blue-green algae are prokaryotic organisms, lacking a true nucleus and membrane-bound organelles. They obtain energy through photosynthesis and are capable of converting sunlight into chemical energy. They typically inhabit aquatic environments, such as lakes, ponds, and oceans, and some species can fix atmospheric nitrogen.

On the other hand, fungi are eukaryotic organisms with a distinct nucleus and membrane-bound organelles. They obtain nutrition by absorbing organic matter from their surroundings. Fungi play crucial roles in decomposition and nutrient cycling in ecosystems. They can be found in various habitats, including soil, plants, and even as symbiotic partners with other organisms, such as in mycorrhizal associations.

In summary, the primary differences between blue-green algae and fungi lie in their cellular structure, mode of nutrition, and classification. While blue-green algae are photosynthetic prokaryotes, fungi are eukaryotes that obtain nutrition through absorption. Understanding these distinctions helps in appreciating the diversity and ecological significance of these two groups of organisms.

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Answer:

DNA packaging contributes to the compaction of the genetic material into cells that are many times smaller and also regulates gene expression and cell replication in living systems.

Explanation:

DNA is a fundamental molecule that contains instructions that make each organism unique. Each chromosome is composed of a very long linear DNA molecule associated with histone proteins that compact the genetic material, which is known as DNA packaging. Transcription and replication require that both strands of the DNA separate. Nonetheless, during DNA packaging, nucleosomes and the folding into chromatin fibers ensure chromosomal DNA is correctly packaged inside smaller nuclei. In consequence, DNA packaging not only enables the compaction of long linear DNA into the cells but also is involved in key biological processes such as gene regulation (transcription) and cell replication.

Answer:

Explanation:

Platyhelminthes and Nematoda are two phyla of animals made up of invertebrate worms. Although both strains are made up of worms, the two types of worms are not closely related. The main difference between Platyhelminthes and Nematoda is that Platyhelminthes is made up of flatworms with a thin, dorso-ventrally flattened body, while Nematoda is made up of a cylindrical body that tapers to fine ends at each end. Tapeworms, Turbellaria, Trematoda, and Monogenea are examples of Platyhelminthes. Secernentea, Enoplea, Chromadoria and Adenophorea are the examples of the nematodes. The flatworm Planaria and the roundworm Caenorhabditis elegans are the best-studied worms in the laboratory.

Answer:

DNA is the information molecule. It stores instructions for making other large molecules, called proteins. These instructions are stored inside each of your cells, distributed among long structures called chromosomes. These chromosomes are made up of thousands of shorter segments of DNA, called genes.

Explanation:

Function of DNA is that it stores all the coded information for the function of the cell and the cells role in the development of a multi cellular organisms.

In nucleus the eukaryotes, the cell's genetic material, or DNA, is contained within an organelle called the nucleus, where it is organized in long molecules called chromosomes.

Eukaryotes typically have much more DNA than prokaryotes, the human genome is roughly 3 billion base pairs while the E. coli genome is roughly 4 million.

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part a.

it would take an estimated 2984 years for the element to undergo complete radioactive decay.

N = N₀ * (1/2)\(^(^t ^/^ T^)\)

N = final number of atoms remaining

N₀ =  initial number of atoms

T =  half-life of the element

0 = 2000 * (1/2)^(t / 430)

(1/2)^(t / 430) = 0

log₂((1/2)= log₂(0)

(t / 430) * log₂(1/2) = log₂(0)

0.01 = (1/2)^(t / 430)

log₂(0.01) = (t / 430) * log₂(1/2)

t = log₂(0.01) * 430 / log₂(1/2)

t = 2984 years

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The labels above represent different alleles of genes located on chromosomes. It is critical that only homologous chromosomes exchange information during crossing-over because homologous chromosomes have similar genes in the same order.

The labels above represent different alleles (versions of a gene) that are located on the chromosomes. Capital letters represent dominant alleles, while lower-case letters represent recessive alleles. Different letters represent different genes, and their locations on chromosomes are also different.

It is critical that only homologous chromosomes exchange information during crossing-over because homologous chromosomes have similar structures and genetic content, making it possible for them to align and exchange segments of DNA. If non-homologous chromosomes were to exchange information, the resulting genetic material would be unstable and could lead to genetic disorders or other problems.

It is important that crossing-over takes place between chromosomes from two different parents because it increases genetic diversity in offspring. Each parent contributes one set of chromosomes, and crossing-over allows for the exchange of genetic information between these sets, leading to new combinations of traits. This is important for the survival of a species as it enables adaptation to changing environments and increases the chances of finding new beneficial traits.

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Answer:

Explanation:

When a meal containing fried fish and toast bread is consumed, it goes through a series of processes in the digestive system of a human. Here's a general description of how the components are processed:

1. Mouth: The process of digestion begins in the mouth. Chewing breaks down the toast bread and fish into smaller pieces, while saliva mixes with the food to start the breakdown of carbohydrates.

2. Esophagus: The chewed food, now called a bolus, is swallowed and travels down the esophagus through peristaltic contractions. The esophagus carries the food to the stomach.

3. Stomach: The stomach is responsible for further mechanical and chemical digestion. It mixes the food with stomach acid and digestive enzymes to break down proteins. The fried fish is broken down into smaller pieces through mechanical churning.

4. Small Intestine: The partially digested food leaves the stomach and enters the small intestine. Here, bile from the liver and enzymes from the pancreas break down fats, while other enzymes continue the breakdown of proteins and carbohydrates. Nutrient absorption occurs through the walls of the small intestine and is facilitated by small finger-like projections called villi.

5. Large Intestine: Any remaining undigested food, as well as water and electrolytes, pass into the large intestine. The large intestine absorbs water and electrolytes while forming waste material known as feces.

6. Rectum and Anus: The feces are stored in the rectum until elimination through the anus occurs during a bowel movement.

Throughout this process, various digestive enzymes and gastric juices are secreted at different stages to facilitate the breakdown and absorption of nutrients. The fried fish and toast bread are broken down into smaller molecules, such as proteins, carbohydrates, and fats, which are then absorbed into the bloodstream to provide energy and nourishment for the body.

Answer: The A, B, and Rh antigens are located on the surface of red blood cells.

Explanation: